Ask how much hardware is behind it.

All that matters is the cost. Their price is cheap, so the real question is whether they are subsidizing the cost to achieve that price or not.

> All that matters is the cost.

Not really, sustainability matters, if they are the only game in town, you want to know that game isn't going to end suddenly when their runway turns into a brick wall.

Cost, not price.

The point of asking how much hardware is to estimate the cost? (Both capital and operational, i.e. power)